Voice and Text Conferencing Library

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using ConferenceLibrary;

namespace ConferenceClient
{
    public partial class Form1 : Form
    {
        TextChatClient ChatClient;
        VoiceChatClient VoiceClient;
        public Form1()
        {
            InitializeComponent();
            CheckForIllegalCrossThreadCalls = false;
            try
            {
                ChatClient = new TextChatClient("127.0.0.1", 4500, "irfan");
            }
            catch
            {
                MessageBox.Show("Conference server is not running.");
            }
            ChatClient.MessageRecieved += new TextChatClient.MessageEventHandler(ChatClient_MessageRecieved);
            ChatClient.UserAdded += new TextChatClient.UserAddedEventHandler(ChatClient_UserAdded);
            ChatClient.UserRemoved += new TextChatClient.UserRemovedEventHandler(ChatClient_UserRemoved);
           
        }

        void ChatClient_UserRemoved(object sender, UserArgs e)
        {
            cbxUsers.Items.Remove(e.UserName);
        }

        void ChatClient_UserAdded(object sender, UserArgs e)
        {            
            cbxUsers.Items.Add(e.UserName);
        }

        void ChatClient_MessageRecieved(object sender,MessageArgs e)
        {
            txtRecievedMessages.Text +=  e.Message;
            
        }

        private void btnSend_Click(object sender, EventArgs e)
        {            
            ChatClient.sendMessage(txtMessage.Text,cbxUsers.Text);
            txtMessage.Text = "" ;
        }

        private void btnMute_Click(object sender, EventArgs e)
        {

        }

        private void btnConnect_Click(object sender, EventArgs e)
        {
            if (btnConnect.Text.Equals("Connect"))
            {
                if (!String.IsNullOrEmpty(txtServerIP.Text))
                {
                    if (VoiceClient == null)
                    {
                        VoiceClient = new VoiceChatClient(txtServerIP.Text, "Server", 4501, 4502);
                        VoiceClient.InitializeCall(this);
                        btnConnect.Text = "Disconnect";
                    }
                }
                else
                {
                    MessageBox.Show("Enter Server IP.");
                }
            }
            else
            {
                if (VoiceClient != null)
                {
                    VoiceClient.UninitializeCall();
                    VoiceClient = null;
                    btnConnect.Text = "Connect";

                }
            }

        }
    }
}